Abstract
The microstrain developed due to the molecular deformation of polymeric material because of MeV proton irradiation causes shifting of peak position of both X-ray diffraction lines and Raman bands in polyethylene terephthalate (PET) microfiber. This was investigated using X-ray diffractometer and micro-Raman spectrometer. In the present work, the PET microfiber of 1.5dpf was irradiated with 3MeV proton at small fluences 1×1010p/cm2 to 1×1012p/cm2. The radiation induced microstrain developed in PET microcrystallites and its size effect was investigated applying XRD. The shift of 0.5cm−1 in the Raman peak position of 1616cm−1 to a lower value due to proton irradiation at small fluences confirmed the development of microstrain.
Published Version
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